REPORT ON THE FORAMINIFERA. 
457 
Lagena elongate,, Ehrenberg, sp. (PI. LYI. fig. 29). 
Miliola elongata, Ehrenberg, 1854:, Mikrogeologie, pi. xxv. fig. 1. 
Oolina lanceolata, Terquem, 1858, Foram. du Lias, l i re - Mem., p. 586. 
acicularis , 
Id. 
Ibid. 
p. 586, pi. i. fig. 2. 
virgula, 
Id. 
1862, Ibid. 
9 icme. JVfem., p. 43 1, woodcut. 
lagenalis, 
Id. 
Ibid. 
p. 429, pi. v. fig. 1. 
simplex, 
Id. 
Ibid. 
p, 430, pi. v. fig. 2. 
fusiformis, 
Id. 
1863, Ibid. 
3Mme. ]\X^ ra ; p 107 ; pi vip fig. ] 
Lagena elongata, Blake, 1876, Yorkshire Lias, p. 454, pi. xviii. figs. 9, 9a. 
This variety lias been admitted in tbe sense in which it is recognised by Blake, 
namely, for cylindrical distomous forms, of nearly even diameter, except near the ends, 
which are contracted or slightly tapering. It is only distinguished from Lagena, 
gracillima by a trifling difference of contour. The synonymy is quoted from the same 
authority. Many of Terquem s figures are exceedingly ill-defined, and it may be questioned 
whether some of them represent Lagence at all. 
Lagena elongata has been found in company with Lagena gracillima at four 
Challenger Stations, in the North Atlantic and South Pacific, at depths of 28 to 1070 
fathoms. 
It occurs as a fossil in the Lias of England (Blake), and of France (Terquem), and in 
the Cretaceous limestones of the Antilibanon (Ehrenberg). 
Ljagena truncate, n. sp. (PI. LYI. figs. 31, 32). 
Test elongate, pyriform, entosolenian ; broadest below the middle ; superior portion 
tapering, oral extremity rounded or obtusely pointed ; inferior end truncate and armed 
with two or more short peripheral spines. Aperture either round or fissurine. Length, 
g\yth inch (Off mm.). 
Entosolenian Lamnce with truncate and spinous base, answering to the foregoing 
description, have been encountered at the following localities : — North Atlantic, south-west 
of the Canaries, 2740 fathoms ; South Atlantic, west of Tristan d’Acunha, 2200 fathoms ; 
and at two points in the South Pacific, 2070 fathoms and 1825 fathoms respectively. 
Lagena aspera, Reuss (PI. LAffl. figs. 7-10; varieties, figs. 6, 11, 12). 
Lagena aspera, Reuss, 1861, Sitzungsb. d. k. Ak. Wiss. Wien, vol. xliv. p. 305, pi. i. fig. 5. 
„ „ Id. 1863, Ibid. vol. xlvi. p. 335, pi. vi. fig. 81. 
„ parkeriana, (1) Brady, 1876, Monogr. Carb. and Perm. Foram., p. 120, pi. viii. figs. 1-5. 
,, aspera, Siddall, 1878, Proc. Chester. Soc. Nat. Sci., pt. 2, p. 48. 
The test of Lagena aspera, as originally figured by Reuss from a Tertiary specimen, 
resembles that of Lagena globosci in contour, — that is to say, it is subglobular or 
